CVE-2023-26031

Root privilege escalation via relative library resolution

Published Nov 16, 2023 · Updated Feb 13, 2025

Untrusted search path handling in Apache Hadoop 3.3.1 through 3.3.4 allows local users to execute code as root on Linux. The SUID container-executor binary searches ../lib/native in its RUNPATH, allowing a low-privileged user to plant a malicious libcrypto.so that loads as root. Exploitation requires a root-owned SUID binary and a writable relative library directory; authenticated YARN users can reach the flaw when jobs run directly on the host.

CVSS severity7.5
High
EPSS probability2.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Untrusted search path handling in Apache Hadoop 3.3.1 through 3.3.4 allows local users to execute code as root on Linux. The SUID container-executor binary searches ../lib/native in its RUNPATH, allowing a low-privileged user to plant a malicious libcrypto.so that loads as root. Exploitation requires a root-owned SUID binary and a writable relative library directory; authenticated YARN users can reach the flaw when jobs run directly on the host.

The record

CVE
CVE-2023-26031
Published
Nov 16, 2023
Updated
Feb 13, 2025
Vendor
The Apache Software Foundation
Product
Apache Hadoop
Classifications
CWE-426, T1068, T1574.008
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.3.1 <3.3.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Hadoopversion=3.3.1 <3.3.5

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.5NVDCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-426Untrusted Search Path
T1068Exploitation for Privilege Escalation
T1574.008Path Interception by Search Order Hijacking

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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